Control of Raman Scattering Quantum Interference Pathways in Graphene.
Published version
Peer-reviewed
Repository URI
Repository DOI
Change log
Authors
Abstract
Graphene is an ideal platform to study the coherence of quantum interference pathways by tuning doping or laser excitation energy. The latter produces a Raman excitation profile that provides direct insight into the lifetimes of intermediate electronic excitations and, therefore, on quantum interference, which has so far remained elusive. Here, we control the Raman scattering pathways by tuning the laser excitation energy in graphene doped up to 1.05 eV. The Raman excitation profile of the G mode indicates its position and full width at half-maximum are linearly dependent on doping. Doping-enhanced electron-electron interactions dominate the lifetimes of Raman scattering pathways and reduce Raman interference. This will provide guidance for engineering quantum pathways for doped graphene, nanotubes, and topological insulators.
Description
Funder: European Commission
Funder: Digital, Industry and Space
Funder: European Research Council
Keywords
Journal Title
Conference Name
Journal ISSN
1936-086X
Volume Title
Publisher
Publisher DOI
Sponsorship
Engineering and Physical Sciences Research Council (EP/K017144/1)
Engineering and Physical Sciences Research Council (EP/L016087/1)
EPSRC (EP/X015742/1)
Engineering and Physical Sciences Research Council (EP/V000055/1)
Engineering and Physical Sciences Research Council (EP/N010345/1)